Table of Contents
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MiniMax
OPERATION & INSTALLATION MANUAL
Model TSI
Natural Gas Only
U.S. Patent Numbers
6,295,980
5,318,007 - 5,228,618
5,201,307 - 4,595,825
If the information in these instructions are not followed exactly, a fire or
explosion may result, causing property damage, personal injury or death.
— Do not store or use gasoline or other flammable vapors and liquids in the
vicinity of this or other appliances.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone.
Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
— Installation and service must be performed by a licensed qualified installer,
service agency or the gas supplier.
For additional free copies of this manual; call (800) 831-7133.
Rev. B 1-22-04
NT/TSI Low NOx Series
®
POOL & SPA HEATERS
WARNING
Pentair Pool Products, Inc.
1620 Hawkins Ave., Sanford, NC 27330
10951 W. Los Angeles Ave., Moorpark, CA 93021
(919) 774-4151
•
(805) 523-2400
•
1 1
1
To
Consumer
Retain For
Future
Reference
P/N 472235
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Table of Contents
Troubleshooting
Related Manuals for Pentair MiniMax NT/TSI 200
Summary of Contents for Pentair MiniMax NT/TSI 200
- Page 1 — Installation and service must be performed by a licensed qualified installer, service agency or the gas supplier. For additional free copies of this manual; call (800) 831-7133. Pentair Pool Products, Inc. 1620 Hawkins Ave., Sanford, NC 27330 (919) 774-4151 •...
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Page 2: Table Of Contents
Table of Contents Introduction ................... 3 Installation — Gas Connections ............ 16 General Description ................3 Installation — Sediment Traps ............. 16 Code Requirements ................ 3 Pipe Sizing Chart/Gas Pressure Requirements ......17 Warranty Information ..............4 Regulated Manifold Pressure Test ..........17 Venting —... -
Page 3: Introduction
40 PVC pipe. The MiniMax NT/TSI Low NOx, also comes equipped with the Pentair multifunction temperature controller which shows, at a glance, the proper functioning of the heater. All MiniMax NT/TSI Low NOx heaters are designed with a hot-surface ignition (HSI) which eliminates the need for a standing pilot. -
Page 4: Warranty Information
Return the warranty registration card after filling in the serial number from the rating plate inside the heater. Pentair Pool Products’ high standards of excellence include a policy of continuous product improvement resulting in your state-of-the-art heater. We reserve the right to make improvements which change the specifications of the heater without incurring an obligation to update the current heater equipment. -
Page 5: Consumer Information And Safety
Introduction CONSUMER INFORMATION AND SAFETY WARNING The U.S. Consumer Product Safety Commission warns that elevated water temperature can be hazardous. See below for water temperature guidelines before setting temperature. 4. Before entering the spa or hot tub, the user 1. Spa or hot tub water temperatures should never exceed 104°... -
Page 6: Installation Instructions
Installation Instructions SPECIFICATIONS IMPORTANT NOTICE: These installation instructions are designed for use by qualified personnel only, trained especially for installation of this type of heating equipment and related components. Some states require installation and repair by licensed personnel. If this applies in your state, be sure your contractor bears the appropriate license. -
Page 7: Installation - Electrical
Installation (Electrical) ELECTRICAL, for MiniMax NT/TSI Low NOx Heaters Electrical Rating 60 Hz 120 / 240 Volts AC, single phase NOTE The MiniMax NT/TSI Low NOx heater is prewired for 240 volt AC connection using the “RED/BROWN” female connector and the “WHITE”... -
Page 8: Installation - Wiring Schematic For All Dual Voltage Blowers
Installation (Electrical) WIRING SCHEMATIC FOR ALL DUAL VOLTAGE BLOWERS 120 VOLTS AC 240 VOLTS AC WHITE LINE # 1 WHITE LINE # 1 YELLOW YELLOW CAP OFF JOINED ORANGE ORANGE JOINED BLACK BLACK LINE # 2 LINE # 2 PURPLE PURPLE BROWN BROWN... -
Page 9: Installation - Wiring Diagram
Installation (Dual Voltage Wiring) MiniMax NT/TSI Low NOx - HSI Hot Surface Ignition Wiring Diagram (DUAL VOLTAGE w/6800 Control Board) IGN/ IGN/ Rev. B 1-22-04 P/N 472235... -
Page 10: Installation - Remote Hook-Ups (2 And 3 Wire)
Installation (Remotes) REMOTE SWITCH DUAL THERMOSTAT 3 Wire Remote JUMPER REQUIRED IF NO 2 WIRE REMOTE SWITCH 24 VAC PRESS HILMT TFUSE VALVE IGNITION MOD RETURN THERMOSTAT CIRCUIT BOARD POOL TPROBE REMOTE POOL/OFF/SPA THERMOSTAT SELECT SWITCH FRONT PANEL POOL/ OFF/SPA THERMOSTAT SELECT SWITCH Figure 5. -
Page 11: Installation - Operating Controls
Installation (Operating Controls) OPERATING (CONTROLS) Dual Temperature Control System THERMOSTAT ADJUSTMENT For convenience and economy all MiniMax NT/TSI The knob with locking feature eliminates the need for Heaters are equipped with two thermostats on the constant thermostat adjustments. Set the knob pointer to front of the heater control panel;... -
Page 12: Installation - Troubleshooting (Controls)
Installation (Operating Controls, cont’d.) HEAT (HEAT) SERVICE (SERVICE) The heat light is on any time the thermostat has The service light is off during normal operation of signaled a call for heat which initializes the ignition heater. The light only comes on if a problem with a safety firing circuit -- the light comes on to indicate control has occurred or when the heater is first firing. - Page 13 Installation (Operating Controls, cont’d.) TROUBLESHOOTING (CONTROLS) - Continued SYMBOL TABLE SWITCH OR DEVICE SWITCH OR DEVICE OPEN CIRCUIT CLOSED CIRCUIT LED OFF LED LIT (BLOCK CURRENT) (PASS CURRENT) IGNITION MODULE GAS VALVE TRANSFORMER INCOMING CIRCUIT HI TEMP REMOTE PRESS TFUSE LINE VOLTAGE BREAKER LIMIT SWITCHES...
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Page 14: Installation - Plumbing
The MiniMax NT/TSI Low NOx heater has the unique capability of direct schedule 40 PVC plumbing connections. A set of bulkhead fittings is included with the MiniMax NT/TSI Low NOx to insure conformity with Pentair’s recommended PVC plumbing procedure. Other plumbing connections can be used. Figure CAUTION... -
Page 15: Installation - Water Connections
Installation (Water Connections) INSULATING THE HIGH LIMITS WATER CONNECTIONS When Reversing Heads on the Reversible Inlet/Outlet Connection The MiniMax NT/TSI Low NOx heater is factory MiniMax NT/TSI Low NOx Heater assembled with right side inlet/outlet water On the MiniMax NT/TSI Low NOx heater there is connections. -
Page 16: Installation - Gas Connections
Installation (Gas Line) GAS CONNECTIONS - (NATURAL GAS ONLY) GAS LINE INSTALLATIONS Before installing the gas line, be sure to check which gas the heater has been designed to burn. This is important because different types of gas require different gas pipe sizes. The rating plate on the heater will indicate which gas the heater is designed to burn. -
Page 17: Pipe Sizing Chart/Gas Pressure Requirements
Installation (Gas Line) PIPE SIZED FOR LENGTH OF RUN IN EQUIVALENT FEET Table 1. . T . ” 4 ” 1 ” 4 ” 2 ” 2 CAUTION The use of Flexible Connectors (FLEX) is recommended as they cause high gas pressure drops. Regulator Adjustment Cap CAUTION 1/8"... -
Page 18: Venting - Indoor Installations
Installation (Indoor) INDOOR VENTING—General Requirements The vent pipe must be the same size or larger. The MiniMax NT/TSI Low NOx heaters are capable of a 360-degree discharge rotation and operate with a positive vent static pressure and with a vent gas temperature less than 400°... - Page 19 Installation (Indoor) INDOOR INSTALLATION (USA ONLY) Chimney or Gas Vent Vent Cap and OUTDOOR SHELTER INSTALLATION (CANADA) Riser Furnished by Installer page 20 for Vent Adaptors All products of combustion and vent gases must be completely removed to the outside atmosphere through a vent pipe which is connected to the stack adaptor.
- Page 20 . n i These openings shall directly, or through duct, connect to outdoor air. Vent Pentair Pool Products, Inc. does not recommend Adaptor indoor installations that do not provide combustion air from outside the building. Air Supply Requirements Guide for MiniMax NT/TSI Heaters Figure 15.
- Page 21 Installation (Indoor) Rev. B 1-22-04 P/N 472235...
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Page 22: Venting - Outdoor Installations
Installation (Outdoor) VENTILATION OUTDOOR INSTALLATION ONLY (Outdoor Shelter Installation in Canada, see page For outdoor installation with built in vent, the heater must be placed in a suitable area on a level, noncombustible surface. Do not install the heater under an overhang with clearances less than 3 feet from the top of the heater. The area under an overhang must be open on three sides. -
Page 23: Basic Operation - General Description
Basic System Operation TO OPERATE HEATER 1. Start pump, make sure the pump is running and is primed, to close the contact of the water pressure switch and supply power to heater. Be sure the pool and/or spa is properly filled with water. -
Page 24: Basic Operation - Hsi Lighting/Operation
Do not touch any electrical switch; do not use any E. The MiniMax NT heater incorporates the Pentair phone in your building. temperature controller to aid you in the operation of the Immediately call your gas supplier from a neighbor's heater, and to assist in diagnosing a failure in the heater’s... -
Page 25: Basic Operation - Safety Controls
Basic Operation SAFETY CONTROLS Figure 19. AIR PRESSURE PROVING SWITCH The air pressure switch is a safety device used to insure that the blower (fan) is operating and has been designed to monitor the vacuum (negative) pressure within the blower housing. The air pressures switch is factory set and is in the ignition module circuit—the ignition module does not operate unless the air pressure switch and all safety switches are closed. -
Page 26: Basic Operation - Hsi Ignition Module
Basic Operation SAFETY CONTROLS, (cont’d.) IGNITION MODULE The Ignition Module is microprocessor based and operates on 24 VAC supplied by the transformer. The module monitors the demand for heat, controls the combustion blower, monitors proper air flow, ignites and maintains the flame during heating and provides diagnostic support. The on-board diagnostics, with LED output, provides assistance with troubleshooting and ensures safe and efficient burner operation. -
Page 27: Maintenance Instructions
Maintenance MAINTENANCE INSTRUCTIONS Pressure Relief Valve It is recommended that you check the following items at least every six months and at the beginning of every In some installations, swimming season. a pressure relief 1. Examine the venting system. Make sure there are valve (PRV) is FOR PRV no obstructions in the flow of combustion and... -
Page 28: Chemical Balance (Water Treatment)
Table 4. POOL AND SPA WATER If pH becomes too high (over alkaline), it Your Pentair Pool Products pool heater was designed has these effects: specifically for your spa or pool and will give you many 1. -
Page 29: Troubleshooting (General)
Troubleshooting - General Possible Cause Remedy Heater will not come on Automatic ignition system fails Check if electrical connections are correct and securely fastened – If YES, call serviceperson. Pump not running Place pump in operation Pump air locked Check for leaks Filter dirty Clean filter Pump strainer clogged... -
Page 30: Exploded View & Parts List
MINIMAX NT/TSI LOW NOx HEATER - (Dual Voltage) w/6800 Controller Board P/N 472235 Rev. B 1-22-04... - Page 31 MiniMax NT / TSI w/6800 Controller Replacement Parts Item Description Quantity Exhaust Grill w/Gasket 472352 Gasket, Exhaust Grill 471701 Top Cover w/Posts 472353 472354 472355 472356 Exhaust Assembly 472357 472358 472359 472360 Blower w/Gasket 472361 472362 Gasket, Blower 471610 Flue Collector 472008 472007 472006...
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Page 32: Save These Instructions
32 40 SAVE THESE INSTRUCTIONS. Pentair Pool Products, Inc. 1620 Hawkins Ave., Sanford, NC 27330 (919) 774-4151 • 10951 W. Los Angeles Ave., Moorpark, CA 93021 (805) 523-2400 • P/N 472235 Rev. B 1-22-04...